James Cameron's Avatar isn't just a hugely expensive sci-fi adventure – it's a titanic bid to transform movies. We get inside the mind of one of Hollywood's biggest players with Rebecca Keegan, author of the new book The Futurist: The Life and Films of James Cameron.

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James Cameron's Avatar isn't just a hugely expensive sci-fi adventure – it's a titanic bid to transform movies. We get inside the mind of one of Hollywood's biggest players with Rebecca Keegan, author of the new book The Futurist: The Life and Films of James Cameron.